Barnstable County, Massachusetts

Barnstable County: county in Massachusetts, United States

About

Barnstable County is a county located in the U.S. state of Massachusetts. As of the 2010 census, the population was 215,888 and a population density of 64 people per km². After 10 years in 2020 county had an estimated population of 213,164 inhabitants. Its county seat is Barnstable. The county was created 341 years ago in 1684.

Barnstable County locator map
Location of Barnstable County on Massachusetts map.

County Snapshot

Barnstable County at a glance

Barnstable County currently has 40 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

40

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Barnstable County

Population 213,164 (2020)
Country United States of America
State Massachusetts (United States)
Twitter username capecodgov
Area 3382 km2
Water as percent of area 70%
Land as percent of area 30%
Latitude & Longitude 41.6842,-70.2741
Named for Barnstable
Altitude 33 feet / 10 meters
Capital Barnstable
Establishment January 01, 1685
Time Zone America/New_York
Local time 17:45:42 (22nd April 2026)
Density 63 Pop. per km² as of 2020
Population growth -1.28% (2010-2020)
Barnstable County Courthouse  Barnstable MA image
Barnstable County Courthouse Barnstable MA image

Geography

Barnstable County is located at 41°41'3"N 70°16'27"W (41.6841900, -70.2740500). It has 2 neighbors: Dukes County and Plymouth County.

Barnstable County map

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The largest city of Barnstable County is Barnstable with a population of 44,535. Other cities include, Falmouth population 31,107, Yarmouth population 23,166, Sandwich population 20,151 and Bourne population 19,743. See all Barnstable County cities & populated places.

Barnstable County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Barnstable County.

City Name Population Title
Barnstable 44,535 A town in Barnstable County, Massachusetts.
Falmouth 31,107 Town in Massachusetts, United States
Yarmouth 23,166 City in Massachusetts
Sandwich 20,151 Human settlement in Barnstable County, Massachusetts, United States of America
Bourne 19,743 Town in Barnstable County, Massachusetts, United States
Mashpee 14,266 Town in Barnstable County, Massachusetts, United States
Hyannis 14,120 Village in town of Barnstable, Barnstable County, Massachusetts, United States
Dennis 13,890 Town in Barnstable County, Massachusetts, United States
Harwich 12,144 Town on Cape Cod, in Barnstable County in the state of Massachusetts
South Yarmouth 11,092 Census-designated place in Barnstable County, Massachusetts
Brewster 9,772 Town in Massachusetts
Marstons Mills 8,017 City in Barnstable County, Massachusetts, United States of America
East Falmouth 6,038 Census-designated place in Barnstable County, Massachusetts
West Yarmouth 6,012 Census-designated place in Barnstable County, Massachusetts
Chatham 5,994 Town in Massachusetts, USA
Orleans 5,802 Town of Barnstable County, Massachusetts, United States

Official website of Barnstable County

Official Website Twitter
  • Barnstable

Demographics

According to census records, the population of Barnstable County decreased by 1.28% in 10 years.

Year Population % Change Method
2010 215,888 - census
2011 215,356 -0.25% estimation process
2012 214,788 -0.26% estimation process
2013 214,518 -0.13% estimation process
2014 214,289 -0.11% estimation process
2015 213,877 -0.19% estimation process
2016 213,559 -0.15% estimation process
2017 213,581 0.01% estimation process
2018 213,471 -0.05% estimation process
2019 212,990 -0.23% estimation process
2020 213,164 0.08% estimation process
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People born in Barnstable County (3)

People born in Barnstable County, including basketball player Shaun Fein, artist Aldro Hibbard, Canadian legal scholar Timothy Caulfield, .

More notable people

Massachusetts Other Counties (more counties)

County Name Population Title
Middlesex County 1,609,379 County in Massachusetts, United States
Worcester County 829,212 County in Massachusetts, United States
Suffolk County 801,582 County in Massachusetts, United States
Essex County 791,263 County in Massachusetts, United States
Norfolk County 709,409 County in Massachusetts, United States
Boston 691,531 The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
South Boston 571,281 This historic Boston neighborhood, often called "Southie, " is situated south of downtown Boston and the Fort Point Channel, with Dorchester Bay to its east and south.
Bristol County 566,765 County in Massachusetts, United States
Plymouth County 523,738 County in Massachusetts, United States
Hampden County 463,986 County in Massachusetts, United States
Worcester 184,570 The second most populous city in Massachusetts.
Hampshire County 161,401 County in Massachusetts, United States
Springfield 152,646 The fourth most populous city in Massachusetts.
Berkshire County 124,571 County in Massachusetts, United States
Cambridge 119,192 The most populous city in Middlesex County, Massachusetts.
Lowell 110,904 The third most populous city in Massachusetts.